docs: def _pull_player_data(self):
          """
          Pull and aggregate all player information.
  
          Pull the player's HTML stats page and parse unique properties, such as
          the player's height, weight, and name. Next, combine all stats for all
          seasons plus the player's career stats into a single object which can
          easily be iterated upon.
  
          Returns
          -------
          dictionary
              Returns a dictionary of the player's combined stats where each key
              is a string of the season and the value is the season's associated
              stats.
          """
          player_info = self._retrieve_html_page()
          if not player_info:
              return
          self._parse_player_information(player_info)
          all_stats = self._combine_all_stats(player_info)
          setattr(self, '_season', list(all_stats.keys()))
          return all_stats